Insulated magnetic coil



(No Model.)

' T. E. M'oRPoRD. INSULATED MAGNETIG CGIL.

Patented Feb. 7, 1893.

Il" Il l lll IH lili @mit/essay WMM A UNITED STATES PATENT OFFICE.

THOMAS E. MORFORD, OE MINNEAPOLIS, MINNESOTA, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, OF ONE-HALF TO THE ENAMEL INSULATOR COMPANY, OFILLINOIS.

INSULATED MAGNETIC COIL.

SPECIFICATION forming part of Letters Patent No. 491,491, dated February7, 1893.

Application iled January 28, 1891. Serial No. 379,380. (No model.)

To all whom, 1115 may con/cern:

Be it known that I, THOMAS E. MORFORD, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State 5 ofMinnesota, have invented certain new and useful Improvements inInsulated Magnetic Coils, of which the followingis aspeoication.

My invention relates tothe means for in sulating the conducting wires ofmagnets,

1o and has for its object the complete embedding of the Wires in acontinuous body of suitable insulating material.

My invention is illustrated in the accompanying drawings in which,

15 Figure l is a side elevation, partly in section, of a magnetembodying` my improvement; and Fig. 2 is an end view of the same,showing portions in transverse section.

In said drawings 1 designates the core and zo 2 the coil-wires. Theinsulating'material, 3,

for the Wires consists of an enameling substance, or equivalentsubstance, completely surrounding and separating all portions of thecoils of the conducting Wire, thus sepa- 25 rating them from one anotherand from the core. The insulating substance may be applied in successivelayers and hardened when each series of the coils has been wound, or, byhaving the substance of suitable consistency the coils may all be Woundbefore the 3o substance is baked or otherwise hardened.

l-Iaving described my invention, What I claim is:

l. In a magnet, the combination with the core and coils of an enamel inWhich the coils 3 5 are embedded, substantially as set forth.

2. In a magnet, a core and coils, and a'ninsulator consisting of anenamel made adherent to both the core and coils, substantially as setforth. 4o

3. In a magnet, the combination with a suitable core, of coils insulatedtherefrom and embedded in an enamel, substantially as set forth.

4t. In a magnet, the combination with the 45 core, of coils and aninsulator consisting of an enamel applied in layers to the core andhardened after each series of coils is Wound, substantially as setforth.

THOMAS E. MORFORD.

Witnesses:

P. H. GUNCKEL, A. L. JONES.

